But I have evidence that God and Christianity changes people lives for the better (for example getting people off drugs and other addictions) and I have yet to see any evidence that the Big Bang theory has ever gotten a single person off drugs or substantially improved their life.
I'm sure Stephen Hawking would be just as satisfied with life if, instead of studying theoretical physics every day, he were to attend church services and worship God all day.
I believe there is a difficulty here in communicating just what is meant by "evidence." There seem to be two definitions that are being used, and perhaps both are valid in different fields. When a scientist talks about evidence, he is referring to some physical, tangible piece of something, such as the gas ratios in amber that were mentioned earlier. When a literary scholar talks about evidence, they talk about the ideas constructed by the author, such as saying that the Wizard of Oz was about the relationship of the city-folk to the country folk.
The Bible, being that it is a book, falls under the category of literary reasoning, but this is complicated by some factors. For one, the book has been held in such authority on the real world that it is seen by some as trumping physical evidence. For another, the book has been interpreted in many different ways, which allows the interpreters to go pretty much any direction that they want to.
When geologists first started looking at geology, their original assumptions in the late 1700's were essentially that the Bible was absolutely true, Noah's flood deposited all of the fossils, and the earth was 4000 years old. As scientists looked at the physical evidence, they found no way to reconcile it with the Biblical evidence. So, they decided to change their interpretations. Many well-respected scientists, such as Alexander Winchell, spent years defending the Bible in his lectures.
The problem is that the first 11 chapters of Genesis just don't jive with what we observe. So, most people now conclude that, while these passages were the best that people knew for a long time, they are not strictly correct because every line of reasoning that is apart from the Biblical text tells a completely different story.
The tower of Babel doesn't explain every language in the world; French, Spanish, English, and hundreds of other languages developed quite independently of any such supernatural cause. We can extrapolate that all language would have formed similarly.
The flood of Noah doesn't provide a root cause for the rainbow (which is a prism formed by the raindrops), nor does it explain how we can have the types of geologic formations that we see. For example, I have seen stream-bed deposits that clearly show a stream going in one direction, and 30 feet on top of that, another stream-bed deposit going another direction, and 30 feet on top of that, another stream-bed deposit. Or, another example, corral reefs can be found stacked in a similar way. A reef can take thousands of years to fully develop; surely, 6 of them can't form atop one another in the space of a year. So, the flood story cannot explain the geologic formations that we observe. (though there is evidence for a flood in the area of Noah, which explains where the story came from)
The origins of humanity can be shown to be through a series of hominid progressions, completely naturalistically, without invoking the dust of the earth or the rib of a man. This has been well discussed in other places.
The idea, generally, is that you have to decide if you want to believe in observable reality, or if you want to believe in the words of the translated Bible. Personally, I find that I am more fulfilled by trusting observable reality.